At a stoplight, a truck traveling at 15 m/s passes a car as it starts from rest. The truck travels at constant velocity and the car accelerates at 3 m/s^2. How much time does the car take to catch up to the truck?
Answers
Answered by
4
Answer:
Let the time taken to catch up be t . In that time, the truck moving at 15 m/s travels vt meters. The car, accelerating from rest, moves the same distance:
12at2=vt
at2=2vt
at=2v
t=2va=(2)(15)3=10 seconds
Explanation:
Similar questions